1 . 根据句意，选择单词或短语并以其适当形式填空。

involve              thanks to              available break down              overcome              comfort

1. As long as you don’t lose heart, you’ll find a way to ________ the difficulty.
2. ________ the work of John Snow, we now know how to prevent cholera.
3. A smile can help us get through difficult situations and ________ barriers.
4. A good teacher is able to ________ her students when they are upset.
5. Mr. Leach is on holiday and is not ________ for the moment.
6. It is beneficial for teenagers to ________ themselves in social activities after school.

2 . 用所给词的适当形式填空。

urgent        practice        behave        consume        adapt       massive generally speaking        regardless of        prior to        feel at home

1. We will do our best to make you ________.
2. He ________ as if nothing had happened to him.
3. The program teaches students many ________life skills.
4. It took him almost a year ________ himself to his new surroundings.
5. They continue to work in the field ________ the fact that it was raining.
6. ________ leaving for America, she paid me a visit and we chatted a lot.
7. A small vehicle will ________ less fuel.
8. ________, expensive smart phones have better cameras.
9. Seen from the train window, the mountains and forests of Canada look________.
10. He was in ________ need of medical attention.